The Fusion engineering team identified the root cause as an issue with beam synchronization, which Apple introduced in 2007 to improve screen redraw and window management in OS X.

We’re working hard to deliver a fix. Until the fix is released, here’s a customer-suggested workaround to temporarily disable beam synchronization. Making this configuration change will significantly improve graphics performance when running OS X Yosemite in a Fusion VM.

Thanks to @rtrouton for his blog post on the subject, and many thanks to VMware Fusion users for your support and patience while we work on this fix.

Although Christmas doesn’t arrive for another two weeks, the VMware Fusion team received an early holiday delight from PCMag.com – an Editors’ Choice award for VMware Fusion 7!

VMware Fusion has always had a loyal following and the product team has put a lot of effort into making it one of the leading solutions available to serve its customers. We have always believed that the solution uniquely offers an experience that is different than the competition and it is gratifying to see that sentiment echoed by an objective third party review.

PCMag.com praised Fusion’s “rock solid stability” and said, “VMware Fusion is like a well-equipped armored vehicle: it goes anywhere (and) it’s unstoppable…” They also liked the vast array of operating systems Fusion supports and the fact that Fusion creates no visual clutter in OS X.

We can’t think of a better way to sum up the strengths of Fusion 7 than the reviewer’s final words,“…Fusion is the Mac app I prefer when I need to get some more-complicated work done in a Windows app under OS X.”

Many thanks to PCMag.com for taking the time to conduct an in-depth review, and thanks always to VMware Fusion users for your support.